[Bug 831734] Re: package x11-apps 7.4 2 failed to install/upgrade:

[Raphaël Hertzog]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.  It seems that there was an error on your system when
trying to install a particular package.  Please execute the following
command, as it will clear your package cache, in a terminal:

sudo apt-get clean

Then try performing the update again.  This will likely resolve your
issue, but the failure could be caused by filesystem or memory
corruption.  So please also run a fsck on your filesystem(s) and a
memory test. Thanks in advance!

Error to prove that a file was corrupted:
Preparing to replace x11-apps 7.4+2 (using .../x11-apps_7.5+1ubuntu2_i386.deb) ...

Unpacking replacement x11-apps ...

dpkg: error processing
/var/cache/apt/archives/x11-apps_7.5+1ubuntu2_i386.deb (--unpack):

 corrupted filesystem tarfile - corrupted package archive

dpkg-deb: subprocess paste killed by signal (Broken pipe)

** Changed in: dpkg (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/831734

Title:
  package x11-apps 7.4 2 failed to install/upgrade:

Status in “dpkg” package in Ubuntu:
  Invalid

Bug description:
  upgrading from 9.10 to 10.04

  ProblemType: Package
  DistroRelease: Ubuntu 10.04
  Package: x11-apps 7.4+2
  ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
  Uname: Linux 2.6.31-20-generic i686
  Architecture: i386
  Date: Mon Aug 22 22:04:30 2011
  ErrorMessage:
   ErrorMessage: package x11-apps is already installed and configured
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  SourcePackage: dpkg
  Title: package x11-apps 7.4+2 failed to install/upgrade:

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